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136 lines
3.9 KiB
C++
136 lines
3.9 KiB
C++
/*
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* Label.h
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*
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* Created on: 7 mar 2019
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* Author: robert
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*/
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#ifndef MIDDLEWARES_GUI_WIDGETS_LABEL_HPP_
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#define MIDDLEWARES_GUI_WIDGETS_LABEL_HPP_
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#include <string>
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#include <list>
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#include "../core/BoundingBox.hpp"
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#include "../core/Font.hpp"
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#include "../core/Color.hpp"
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#include "../core/DrawCommand.hpp"
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#include "../Common.hpp"
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#include "Margins.hpp"
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#include "Alignment.hpp"
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#include "Rect.hpp"
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#include "Style.hpp"
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#include "utf8/UTF8.hpp"
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namespace gui
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{
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namespace meta
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{
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struct Meta
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{};
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struct Item : public Meta
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{
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uint32_t radius = 0;
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};
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struct Rect : public Item
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{
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Rect &operator()(std::array<uint32_t, 4> xywh)
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{
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x = xywh[0], y = xywh[1], w = xywh[2], h = xywh[3];
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return *this;
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}
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uint32_t x = 0, y = 0, w = 0, h = 0;
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int32_t no_focus = style::window::default_border_no_focus_w;
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int32_t focus = style::window::default_border_no_focus_w;
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std::string font = style::window::font::medium;
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bool dots = true;
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uint32_t align = gui::Alignment::ALIGN_HORIZONTAL_LEFT | gui::Alignment::ALIGN_VERTICAL_CENTER;
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RectangleEdgeFlags edges =
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gui::RectangleEdgeFlags::GUI_RECT_EDGE_TOP | gui::RectangleEdgeFlags::GUI_RECT_EDGE_BOTTOM;
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};
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struct Label : public Rect
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{
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const UTF8 text;
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Margins margins;
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Label(std::array<uint32_t, 4> xywh)
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{
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operator()(xywh);
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}
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};
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}; // namespace meta
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class Label : public Rect
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{
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protected:
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UTF8 text;
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UTF8 textDisplayed;
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uint32_t charDrawableCount;
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// number of pixels occupied by displayed text;
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uint32_t stringPixelWidth;
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// color of the text
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Color textColor;
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// font pointer
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Font *font;
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// margins for text
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Margins margins;
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// type of alignment
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Alignment alignment;
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// flag that defines if 3 dots (ellipsis) are to be displayed at the end of label's text.
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bool dotsMode;
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// truncate a beginning or an end.
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bool dotsTruncateEnd;
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// flag that defines if a remaining area of the label has a horizontal line.
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bool lineMode;
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// area specified in pixels occupied by text inside label space.
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// This defines also position of the text considering alignment and margins.
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BoundingBox textArea;
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// widgets to add line
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Rect *lineFront = nullptr;
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Rect *lineBack = nullptr;
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void calculateDisplayText();
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public:
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Label();
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Label(Item *parent,
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const uint32_t &x,
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const uint32_t &y,
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const uint32_t &w,
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const uint32_t &h,
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const UTF8 &text = UTF8{});
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Label(Item *parent, meta::Label label);
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virtual ~Label();
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// Label's specific methods
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virtual void setText(const UTF8 &text);
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virtual void clear();
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virtual UTF8 getText();
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virtual void setAlignement(const Alignment &alignment);
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virtual void setMargins(const Margins &margins);
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void setDotsMode(const bool val, const bool truncateEnd = true);
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/**
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* @brief Defines if remaining area of the label has a horizontal line.
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*/
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void setLineMode(const bool &val);
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void setTextColor(Color color);
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void setFont(const UTF8 &fontName);
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// virtual methods
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std::list<DrawCommand *> buildDrawList() override;
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void setPosition(const short &x, const short &y) override;
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void setSize(const unsigned short w, const unsigned short h) override;
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uint32_t getTextNeedSpace();
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};
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} /* namespace gui */
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#endif /* MIDDLEWARES_GUI_WIDGETS_LABEL_HPP_ */
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